# Triangle calculator SSS - result

Please enter the triangle sides:

### Obtuse scalene triangle.

Sides: a = 13   b = 17   c = 22

Area: T = 110.3098657865
Perimeter: p = 52
Semiperimeter: s = 26

Angle ∠ A = α = 36.14989096752° = 36°8'56″ = 0.63109174948 rad
Angle ∠ B = β = 50.47988036414° = 50°28'44″ = 0.8811021326 rad
Angle ∠ C = γ = 93.37222866834° = 93°22'20″ = 1.63296538327 rad

Height: ha = 16.97105627485
Height: hb = 12.97774891606
Height: hc = 10.02880598059

Median: ma = 18.55439753153
Median: mb = 15.94552187191
Median: mc = 10.39223048454

Inradius: r = 4.24326406871
Circumradius: R = 11.01990806735

Vertex coordinates: A[22; 0] B[0; 0] C[8.27327272727; 10.02880598059]
Centroid: CG[10.09109090909; 3.3432686602]
Coordinates of the circumscribed circle: U[11; -0.64881812161]
Coordinates of the inscribed circle: I[9; 4.24326406871]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 143.8511090325° = 143°51'4″ = 0.63109174948 rad
∠ B' = β' = 129.5211196359° = 129°31'16″ = 0.8811021326 rad
∠ C' = γ' = 86.62877133166° = 86°37'40″ = 1.63296538327 rad

# How did we calculate this triangle?

### 1. The triangle circumference is the sum of the lengths of its three sides ### 2. Semiperimeter of the triangle ### 3. The triangle area using Heron's formula ### 4. Calculate the heights of the triangle from its area. ### 5. Calculation of the inner angles of the triangle using a Law of Cosines ### 6. Inradius ### 7. Circumradius ### 8. Calculation of medians #### Look also our friend's collection of math examples and problems:

See more informations about triangles or more information about solving triangles.